<!DOCTYPE html>
<html lang="zh-cn">
	<head>
	    <meta charset="utf-8">
	   	<title>HTML TEMP </title>
	   	<style type="text/css">
	   		div{
	   			border: 1px solid red;
	   			border-radius: 5px;
	   			margin-top:10px; 
	   		}
	   		#div1{
	   			background-color: #6e6e6e
	   		}
	   		#div1{
	   			background-color: green;
	   		}
	   	</style>
		</head>
	<body>
		<div id="div1">我是一个div</div>
		<div id="div2">我是一个div</div>
		
	</body>
</html>